Textile treating apparatus



Jan. 1, 1963 T. Ffsuses 3,070,898

TEXTILE TREATING APPARATUS Filed Sept 16, 1959 INVENTOR.

A TTORNEYS.

United States Patent 3,070,898 TEXTILE TREATING APPARATUS Thomas F. Suggs, Gastonia, N.C'., assignor to Cooker Machine & Foundry Company, Gastonia, N.C., a corporation of North Carolina Filed Sept. 16, 1959, Ser. No. 840,447 2 Claims. (CI. 34-87) This invention relates to textile treating apparatus having an automatic controlling device for regulaing the temperature on the drying section.

In the textile industry, it is conventional to pass a plurality of ends of'yarn continuously through a size box, thereby impregnating the yarn with liquid size or the like. After impregnation, the excess size is squeezed out of the yarn and the yarn is then passed through a dryer. One conventional form of dryer is the so-called can dryer, which consists of a plurality of spaced steam drums with which the ends of yarn are in peripheral contact.

It is conventional to provide slashers with speed control means for running the multiple ends of yarn at different rates of linear speed. This is a source of difficulty since the yarn, if uniformly squeezed, tends to have a relatively uniform moisture content. Therefore, if the yarn runs at a relatively low speed over the peripheries of the cans in the can drying section, such yarns are exposed for a relatively great period of time to the drying action of the steam within the cans, thus resulting in a very complete drying and possibly even a scorching of the yarns. On the other hand, if the slasher is being run at a very high rate of speed, the multiple ends of yarn are exposed for a much shorter period of time to the peripheral surfaces of the cans in the dryer, thus providing a substantially shorter drying time with the result that a much less complete drying is obtained.

It is an object of this invention to provide a means for permitting the wide variation of linear speed of operation of a slasher, without interfering with the attainment of a uniformly dried product. More specifically, it is an object of this invention to provide automatic means for compensating for the changes of speed of the yarn as it passes through the slasher, and particularly the drying section thereof, so that substantially the same degree of drying will be obtained whether the yarn is being run at a high rate of speed or at a loW rate of speed.

Other objects and advantages of this invention, including the simplicity and economy of the same, will further become apparent hereinafter and in the drawing.

The drawing represents schematically, in side elevation, an apparatus embodying features of this invention and accomplishing the objects heretofore referred to.

Referring specifically to the form of the invention selected for illustration in the drawing, the number 10 designates a conventional size box which contains liquid size solution, and the number 11 designates a dryer having a plurality of steam heated cans 12. The cans 12 are spaced apart from one another providing a tortuous passage for the yarn Y which is conventionally in the form of a sheet consisting of multiple ends.

The number 13 designates a beamer having a beam 14 upon which the multiple ends of yarn are Wound, after they emerge from the dryer.

The size box 10, the dry can section 11 and the beamer 13 are all conventional in the art and are Well known.

In accordance with this invention, a means is provided for varying automatically the steam pressure supplied internally to the cans, in proportion to the rate of movement of the yarn through the slasher. It will be apparent that the steam valve 15, which receives steam from a pipe 16 connected to a suitable source, is an automatically "ice controlled valve and is of a conventional type which has the capacity to throttle the steam in order to provide continuously variable steam pressures. A leverv 20 is pivoted to the valve stem extension 21, and in turn is pivoted to another lever 22 which is pivoted to a bell crank 23 having a stationary pivot 24. The bell crank 23 is operated by a plunger 25 which reciprocates through a stationary bearing 26 and which is connected to .friction disc 27. A spring 30 is provided continuously urging the friction disc 27 toward the right as seen in the drawing.

Another friction disc 31 is provided, in angular con:- tact with the friction disc; 27.. The friction disc 31.is supportedon a sleeve 32 which carries a governor 33. The sleeve 32 is splined to an internal shaft ,34 which in turn is driven through a stationary bearing 35 by. a gear 36 meshed with a wormv gear 37 Which is driven by an electric drive motor 40., The drive motor 40' is connected through a, sprocket 41 and a chain 42 to the,

beam 14.

A conventional electric energizing source such as the wires 43, 44 is provided for driving the motor 40, and the speed of the motor is regulated by a conventional rheostat 45.

It will be appreciated, accordingly, that the rheostat 45 not only controls the speed of operation of the beam which in turn controls the speed of operation of the slasher, but this rheostat also operates through the governor 33 to control the lever arm 20, which actuates the valve stem extension 21 thereby automatically regulating the setting of the valve which controls the pressure of the steam that is delivered to the cans 12. I

In operation, the operator simply adjusts the rheostat 45 in order to attain the desired speed on the beam 14. This operates automatically through the linkage mechanism including the lever 20 to adjust the pressure transmitted through the valve 15, thereby pressurizing the cylinders in the cans 12. If the operator should readjust the rheostat 45 to provide additional speed, the governor balls 33 tend to fly further apart, thereby drawing the friction disc 31 toward the left, swinging the bell crank as indicated by the arrows on the drawing, thereby pulling the arm 20 toward the right and readjusting the valve 15 in order to provide a higher pressure. If the operator should reduce the speed of the beam 14, the reverse action takes place, decreasing the speed and also decreasing the pressure of the steam supplied .to the cylinders of the can section.

It will be appreciated that the temperature of steam is approximately proportional to its pressure, when the steam is saturated. Therefore, the control system specifically disclosed herein provides a ready and convenient means for changing the temperature of the peripheral surfaces of the drying cylinders.

Accordingly, when the yarn is passing at low speed over the surfaces of the cylinders, the steam pressure is substantially reduced, thereby counteracting the fact that the yarns are in contact with the drum surface for a relatively long period of time. Similarly, when the linear speed of the yarn is increased, the pressure of the steam is also increased, providing a higher temperature which provides much more rapid drying. Therefore, regardless of the speed of the yarn the temperature of the steam is so adjusted that a uniform drying condition is obtained at the exit of the dryer.

Although this invention has been described with specific reference to the particular form thereof, a con siderable number of variations may be made, including the substitution of equivalents, reversals of parts, and the use of certain features of the invention independently of other features, without departing from the spirit or scope of the invention as defined in the appended claims.

Having thus described my invention, I claim:

1. In a textile treating apparatus adapted to the sizing and drying of a continuous run of textile material, the combination which comprises steam heated drying means, steam valve means for varying the steam pressure in said drying means, means for varying the speed of textile material at said drying means, and control means connected to said speed varying means, said control means including a mechanical governor and a mechanical linkage actuated and moved by said governor, said mechanical linkage being connected to said steam valve means for automatically varying the pressure of the steam in response to variation of speed of the textile material.

2. In a textile treating apparatus adapted to the sizing and drying of a continuous run of textile material, the combination which comprises steam heated drying means, steam pressure varying means for said drying means, an electric drive motor adapted and arranged to move said textile material through said apparatus, electrical means for varying the speed of said motor to control the linear speed of said textile material at said drying means, and control means connected to said electric motor and to said steam pressure varying means for automatically varying the pressure of the steam in response to variation in the speed of the textile material, said control means including a pair of tangential friction discs supported on spaced parallel shafts, one of said shafts being connected to said electric motor and having mounted thereto a mechanical governor arranged to move said friction discs along said shafts a distance proportional to a change of speed of said motor, the other of said shafts being arranged for movement with said friction discs and being connected by mechanical linkage with said steam pressure varying means.

References Cited in the file of this patent UNITED STATES PATENTS 2,196,005 Bariffi Apr. 2,- 1940 2,346,437 Krough Apr. 11, 1944 2,420,399 New May 13, 1947 2,445,443 Long July 20, 1948 2,484,594 Spangenberg Oct. 11, 1949 2,807,096 Kullgren et a1. Sept. 24, 1957 

1. IN A TEXTILE TREATING APPARATUS ADAPTED TO THE SIZING AND DRYING OF A CONTINOUS RUN OF TEXTILE MATERIAL, THE COMBINATION WHICH COMPRISES STEAM HEATED DRYING MENAS, STEAM VALVE MEANS FOR VARYING THE STEAM PRESSURE IN SAID DRYING MEANS, MEANS FOR VARYING THE SPEED OF TEXTILE MATERIAL AT SAID DRYING MEANS, AND CONTROL MEANS CONNECTED TO SAID SPEED VARYING MEANS, SAID CONTROL MEANS INCLUDING A MECHANICAL GOVERNOR AND A MECHANICAL LINKAGE ACTUATED AND MOVED BY SAID GOVERNOR, SAID MECHANICAL LINKAGE BEING CONNECTED TO SAID STEAM VALVE MEANS FOR AUTOMATICALLY VARYING THE PRESSURE OF THE STEAM IN RESPONSE TO VARIATION OF SPEED OF THE TEXTILE MATERIAL. 